CVE WatchJul 15, 2026

CVE-2026-48799

Postiz is an AI social media scheduling tool. Prior to 2.21.8, Postiz fails to verify Nowpayments IPN callback authenticity against the paym

CVSS

7.7

High

EPSS

0.2%

KEV

—

Exploit Today

0-100

Published: Jul 15, 2026 · Last modified: Jul 15, 2026 · CWE-345 · CWE-639

EPSS · 30d

0.2%EPSS · 30 days0.2%

2026-07-162026-07-17

Technical description

Postiz is an AI social media scheduling tool. Prior to 2.21.8, Postiz fails to verify Nowpayments IPN callback authenticity against the payment provider shared secret and reads the target subscription identifier from the untrusted request body, allowing a low-privileged account to grant arbitrary organizations lifetime PRO subscriptions without payment. This issue is fixed in version 2.21.8.

Official references

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